Hadji The word comes from the Arabic "Hajj" which means "standing in front of a deity in a holy place" or "journey to a sacred place"……
The nickname Hatzis, our religion, ceremoniously given to anyone who goes to worship the Holy Land and "baptized" in the Jordan River.
Of course, It is not required for someone to be called Hatzis for this reason. However, is an indication that someone has been there. indeed, previously it was difficult movements, in one go to the Holy Land was a real "feat".
For this it was something as "title of honor" for the pilgrim.
As the nickname arises Hatzis, So in custom before the name of each Orthodox Christian visiting the Holy Land, and being baptized in the Jordan River, while forming a legitimate reason customary law change of surname of the pilgrim descendants.
There have not been many such adjectives replacements. E.g. a Christian called Andrew is visiting the Holy Land, and when it returns addresses Chatziandreas. His children, possibly bore the epithet Andreou, They can replace the Hadjiandreou.
Regardless of the correspondence to trade mainly inscriptions (labels) to limit the name instead Hadjis enter the indicator X "before the adjective, although in our day this custom tends to erase.